6. Good Will Hunting
Creating a great comedic scene was as easy as putting Robin Williams in a room and pointing a camera at him. His story about his departed wife who once woke herself up by passing gas was improvised. Everyone on the set was in stitches, and if you pay close attention you’ll notice the camera shakes. That’s the camera man laughing.
7. The Shining
When you’re supposed to be playing an insane character you just let your brain jump to whatever word, phrase, or sentence it wants. Jack Nicholson jumped to the first phrase of every Johnny Carson show, “Here’s Johnny!”
8. The Departed
After his role in The Shining, if Jack Nicholson pulls a gun on you, you’ll be surprised. So was Leonardo DiCaprio on the set of The Departed, but he’s a great actor, and the following few lines of dialogue between him and Nicholson were improvised. It’s still a wonder it took Leo so long to win an Oscar.
9. Terminator 2: Judgment Day
You wouldn’t think The Terminator is one for surprises and improv, but “I need a vacation” was a line that wasn’t in the script. It can’t compete with “I’ll be back” or “Hasta La Vista Baby”, but it provides one of the very few moments of comic relief in the movie.